Pseudomeningoceles are rare complications of laminectomy surgery. Such clinical condition results from an inadvertent surgical dural rupture. We describe in the present study the report of a patient who developed iatrogenic pseudomeningocele in the lumbar region after performing a left laminectomy in L5 topography. After the neurological assessment of the patient, bilateral hypoaesthesia was observed, in addition to a floating bulging in the lumbar region that was accentuated during the valsalva maneuver, with the hypothesis of a pseudomeningocele.